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bstj62-1-153_djvu.txtUT ffCONTRIBUTORS TO THIS ISSUE
Robert V. Anderson, Bell Laboratories, 1954—. Mr. Anderson
began his career as a Technical Aide. He has worked on a wide variety
of projects including error-correcting code demonstrator, seismic en-
coder, world's fair exhibits, aids for the handicapped, computer control
of the Murray Hill exhibit area, and computer terminals. He is cur-
rently a Member of Technical Staff.
Douglas L. Bayer, B.A., 1966, Knox College; M.S. (Physics), 1968,
and Ph.D. (Nuclear Physics), 1970, Michigan State University; Rutgers
University, 1971-1973; Bell Laboratories, 1973—. At Rutgers Univer-
sity, Mr. Bayer was involved in low-energy nuclear scattering experi-
ments. At Bell Laboratories, he has been involved in computer oper-
ating systems research on mini- and microcomputers. Member, acm.
Aland K. Chin, B.A., 1972, Brandeis University; M.S., 1975, Ph.D.,
1977, Cornell University; Senior Research Engineer, Honeywell Elec-
tro-Optics Center, 1977-1978; Bell Laboratories, 1978—. Mr. Chin is
involved in the design, processing, and characterization of light-emit-
ting diodes for optical communication systems. Member, American
Physical Society, American Association for the Advancement of Sci-
ence, Phi Beta Kappa, New York Academy of Science, Electrochemical
Society.
Richard V. Cox, B.S. (Electrical Engineering), 1970, Rutgers Uni-
versity; M.A., 1972, Ph.D., 1974 (Electrical Engineering), Princeton
University; The Aerospace Corporation, 1973-1977; Assistant Profes-
sor, Rutgers University, 1977-1979; Bell Laboratories, 1979—. Mr. Cox
is a member of the Acoustics Research Department. His current
research interests are in digital speech coding, analog speech scram-
bling, and real-time speech processing systems.
Michael A. DiGiuseppe, B.S. (Chemistry), 1968, Polytechnic In-
stitute of New York; Ph.D. (Chemistry), 1975, Brown University;
Allied Corporation, 1973-1980, Bell Laboratories, 1980—. At Allied
Corporation Mr. DiGiuseppe was engaged in the crystal growth of
garnets for use as laser-hosts and substrates for magnetic films. Re-
search efforts focused on high temperature phase equilibria in oxide
melts. At Bell Laboratories Mr. DiGiuseppe is engaged in the crystal
growth research of alloys for lightwave applications. Member, AACG
(current AACG-NJ chairman), ACS, AAAS, Sigma Xi.
153
Nancy Y. Graham, A.B., 1959, M.A., 1962 (Mathematics), Univer-
sity of California, Berkeley; Bell Laboratories, 1970-1975, 1979—. Ms.
Graham was a part-time employee in the Acoustics Research Depart-
ment from 1970 to 1975, where she became interested in computer
graphics. Ms. Graham returned to Bell Laboratories in 1979 and is a
Member of Technical Staff in the Computer Graphics Group.
David W. Hagelbarger, A. B. (Chemistry, Mathematics, Physics),
1942, Hiram College; Ph.D. (Physics), 1947, California Institute of
Technology; Bell Laboratories, 1949 — . Mr. Hagelbarger has done
research in a variety of fields including learning machines, stability of
molten zones, magnet design, error-correcting codes, information re-
trieval, seismic monitoring of nuclear test bans, world's fair exhibits,
switching networks, aids for the handicapped, and teaching aids. He is
currently interested in improving the interface between computers and
people.
Nuggehally S. Jayant, B.Sc. (Physics and Mathematics), 1962,
Mysore University; B.E., 1965, and Ph.D. (Electrical Communication
Engineering), 1970, Indian Institute of Science, Bangalore; Research
Associate at Stanford University, 1967-1968; Bell Laboratories,
1968 — . Mr. Jayant was a visiting scientist at the Indian Institute of
Science in 1972 and 1975. He has worked in the field of digital coding
and transmission of waveforms, with special reference to robust speech
communications. He is also editor of the IEEE Reprint Book, Wave-
form Quantization and Coding.
Peter D. Karabinis, B.E.(E.E.), 1974, M.E.(E.E.), 1976, The City
College of New York; Bell Laboratories, 1976 — . Mr. Karabinis is a
member of the Exploratory Radio Systems Department of the Radio
Transmission Laboratory. His interests he in wideband digital trans-
mission over dispersive channels, optimum transmitter-receiver design
techniques, and digital signal processing. He has worked on space
diversity combiners and intermediate frequency equalizers, and is
currently involved in design and development of components for high-
speed digital radio systems. Member, Eta Kappa Nu.
Vassilis G. Keramidas, Ph.D. (Solid State Science), 1973, Mate-
rials Research Laboratory, Pennsylvania State University; Bell Labo-
ratories, 1973 — . Mr. Keramidas has worked on LEDs for displays and
optoelectronics, on ohmic contacts to compound semiconductors and
on the crystal growth, by liquid phase epitaxy, and characterization of
1 54 THE BELL SYSTEM TECHNICAL JOURNAL, JANUARY 1 983
materials for LEDs for lightwave communications. He is currently
Supervisor of a Special Materials Group. Member of American Phys-
ical Society, Electrochemical Society, American Association for Crys-
tal Growth.
Peter S. Kubik, Western Electric, 1942-1947; Bell Laboratories,
1947 — . Mr. Kubik started his career as a screw machine operator at
Western Electric. He attended evening classes in mechanical design at
Stevens Institute and Newark College of Engineering. Mr. Kubik did
the physical design of two experimental switching offices, ESSEX and
XDS. He has worked on a variety of projects including magneto-
strictive delay lines, the first successful gas laser, world's fair exhibits,
educational aids, aids for the handicapped, and computer terminals.
He is currently a Member of Technical Staff.
Barbara J. McDermott, B.A., 1949, University of Michigan, Ann
Arbor; M.A., 1962, Columbia University, New York; Haskins Labora-
tories, 1950-1959; Bell Laboratories, 1959—. From 1950-1959 Ms.
McDermott was a research assistant at Haskins Laboratories, New
York. Since 1959, she has been a Member of the Speech Research
Department, Bell Laboratories, Murray Hill, NJ, where her principal
research interest has been the perception of transmitted speech.
John A. Morrison, B.Sc, 1952, King's College, University of Lon-
don; Sc.M., 1954 and Ph.D., 1956, Brown University; Bell Laboratories,
1956—. Mr. Morrison has done research in a number of different areas
of applied mathematics and mathematical physics. He has recently
been interested in probability theory, and various queueing problems
in particular. He was a Visiting Professor of Mechanics at Lehigh
University during the Fall semester, 1968. He is currently the Man-
aging Editor of SIAM Review. Member, American Mathematical
Society, SIAM, IEEE, Sigma Xi.
Ann Marie S. Quinn, B.S. (Linguistics and Speech Science), Rut-
gers University, New Brunswick, NJ; Bell Laboratories, 1969 — . Ms.
Quinn is presently working in the Acoustics Research Department.
Robert H. Saul, Ph.D. (Metallurgy and Materials Science), 1967,
Carnegie-Mellon University; Bell Laboratories, 1967—. Initially Mr.
Saul was engaged in characterization and development of epitaxial
growth techniques for opto-electronic materials and devices. In 1972
CONTRIBUTORS TO THIS ISSUE 155
he became Supervisor of a group responsible for developing visible
light-emitting diodes. That work pioneered the use of multi-slice
epitaxial techniques for achieving state of the art performance in a
manufacturable growth system. Since 1975 Mr. Saul has supervised a
group responsible for developing a variety of infrared light-emitting
diodes that are used in optical-isolators and fiber optic systems. His
current interests include development of long wavelength sources for
lightwave transmission systems and reliability of detectors. Mr. Saul
holds eight patents in the area of materials growth and opto-electronic
devices. Senior member, IEEE; member, American Physical Society,
Sigma Xi, Tau Beta Pi. Chairman, 1982 IEEE Specialist Conference
on Light-Emitting Diodes and Photodetectors.
R. A. Semplak, B.S. (Physics), 1961, Monmouth College; Bell
Laboratories, 1955 — . Mr. Semplak's main research interest is in stud-
ies of atmospheric effects on micro- and millimeter-wave propagation.
Currently, he is a member of the Radio Communications Research
Department. Member, Sigma Xi and Commission F of the Interna-
tional Union of Radio Science (URSI/USNC).
Henryk Temkin, Ph.D. (Physics), 1975, Stevens Institute of Tech-
nology; Cornell University, 1975-1977; Bell Laboratories, 1977—. Mr.
Temkin is involved in the development of materials and devices for
fiber communications. He is currently a member of the Semiconductor
Electronics Research Department. Member, American Physical Soci-
ety, Electrochemical Society.
Richard A. Thompson, B.S., 1964 (Electrical Engineering), Lafay-
ette College; M.S., 1966 (Electrical Engineering), Columbia University;
Ph.D., 1971 (Computer Science), University of Connecticut; Bell Lab-
oratories, 1963-1968, 1977—. Mr. Thompson is currently in the Digital
Systems Research Department at Murray Hill, NJ. He was a member
of the Electrical Engineering Department at Virginia Polytechnic
Institute and State University from 1971-1977, achieving the rank of
Associate Professor. His research interests include probabilistic formal
languages, fault tolerance and cellular automata, the human-machine
interface, and communications systems. Member, IEEE, active partic-
ipant in Computer and Communications Societies.
Jose M. Tribolet, B.S. (Electrical Engineering), 1972, Instituto
Superior Tecnico, Lisbon, Portugal; M.S., E.E., and Sc.D degrees
(Electrical Engineering) from the Massachusetts Institute of Technol-
1 56 THE BELL SYSTEM TECHNICAL JOURNAL, JANUARY 1 983
ogy, Cambridge, in 1974, 1975, and 1977, respectively. From 1972 to
1977 Mr. Tribolet was a member of the Massachusetts Institute of
Technology Research Laboratory of Electronics, where his research
activities involved the application of homomorphic signal processing
to speech and seismic data analysis. From 1977 to 1978 he was with
the Acoustics Research Department, Bell Laboratories, Murray Hill,
NJ, as a post-doctoral fellow, working on adaptive transform coding of
speech. He is presently Full Professor of Electrical Engineering and
Computer Science at the Instituto Superior Tecnico, Lisbon, Portugal,
where he directs the Research Institute in Systems Engineering and
Computer Science (INESC). Mr. Tribolet was recently on sabbatical
leave at the Acoustics Research Department, Bell Laboratories, Mur-
ray Hill, NJ, from July through December 1981, where he worked on
speech recognition, coding, and scrambling. Member, Sigma Xi.
Wilson W. Yale, B.S. (Mathematics), 1973, M.S. (Mgt. Science),
1976, Ph.D. (Industrial Engineering), 1978, Lehigh University; Bell
Laboratories, 1978—. Mr. Yale has done research in non-linear pro-
gramming, cutting tool engineering, finance, decision support systems,
and customer decision modeling. More recently he has been interested
in stochastic problems arising from office automation and from esti-
mating the demand for virtual private-line networks. He was a Visiting
Professor of Industrial Engineering at Lehigh University during the
spring semester of 1979. Member, ORSA, TIMS.
Christie L. Zipfel, A.B. (Physics), 1963, Vassar College; M.S., 1965,
and Ph.D., 1969 (Physics), University of Michigan; Bell Laboratories,
1974—. Mrs. Zipfel is a member of the Lightwave LED Group.
CONTRIBUTORS TO THIS ISSUE 157
PK
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